984 resultados para Condução nervosa


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The authors studied the possible inductive effect of exogenous gangliosides administrated intra-peritoneal and intra-muscular, in 33 rats, after compression and sutures of sciatic nerve. In the animals suffering compression of the sciatic nerve only, the myelin sheath was preserved with good regeneration of the nerve. There was no statistics difference between the two groups with or without the administration of gangliosides. In the group of rats where section of the sciatic nerve and suture were performed, neuroma of amputation as well as dense cicatricial tissue with inflammatory reaction of foreign body type was noted around the sutures. In conclusion, the formation of neuroma of amputation associated with severe inflammatory reaction had an important role in determining the regeneration of the nerve.

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Cardiac arrhythmias are important electrocardiographic disorders in small animal medicine since some of them can cause serious situations, such as cardiac arrest and death. It's essential to recognize ECG abnormalities and the frequency they occur to improve the therapy. The aim of this study was to determine the prevalence of cardiac arrhythmias in dogs from January 2003 to April 2007 by retrospective analysis of ECGs obtained at the Veterinary Hospital at UNESP - Botucatu - SP. The most common rhythm disturbances in this population were sinus tachycardia and ventricular premature complexes in dogs and sinoventricular rhythm in cats.

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The purpose of this study was to evaluate how walking a dog on a leash influenced haptic perception and stability during human locomotion. Fourteen adults, with and without sight restriction, walked on a narrow balance beam by themselves, or holding a leash attached to a dog that walked on a parallel narrow bench. The performance of participants who walked with the dog, but blindfolded, significantly (p < 0.05) improved as compared to the condition without the dog. Their locomotion performance was assessed via the duration of the total displacement on the balance beam, durations of the double support phase, swing phase, stepping cycle, stepping length, and linear velocity, as well as variability of the inter-limb relative phase. With vision, these parameters were not affected by the presence of the dog. We conclude that these adults were able to use the dog's leash to detect haptic properties in order to achieve postural control (e.g., stability in speed performance) while walking.

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Pós-graduação em Ciências da Motricidade - IBRC

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Pós-graduação em Pesquisa e Desenvolvimento (Biotecnologia Médica) - FMB

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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)